PHP switcher

sphp.sh

#!/bin/bash

# Check if command was ran as root.
if [[ $(id -u) -eq 0 ]]; then
    echo "The command \"sphp\" should not be executed as root or via sudo directly."
    echo "When a service requires root access, you will be prompted for a password as needed."
    exit 1
fi

# Usage
if [ $# -ne 1 ]; then
    echo "Usage: sphp [phpversion]"
    echo "Versions installed:"
    brew list | grep '^php[0-9]\{2,\}$' | grep -o -E '[0-9]+' | while read -r line ; do
        echo " - phpversion: $line"
    done
    exit 1
fi

currentversion="`php -r \"error_reporting(0); echo str_replace('.', '', substr(phpversion(), 0, 3));\"`"
newversion="$1"

majorOld=${currentversion:0:1}
majorNew=${newversion:0:1}
minorNew=${newversion:1:1}

brew list php$newversion 2> /dev/null > /dev/null

if [ $? -eq 0 ]; then
    echo "PHP version $newversion found"

    # Check if new version is already the current version.
    # if [ "${newversion}" == "${currentversion}" ]; then
    #     echo -n "PHP version ${newversion} is already being used. Continue by reloading? (y/n) "
    #     while true; do
    #         read -n 1 yn
    #         case $yn in
    #             [Yy]* ) echo && break;;
    #             [Nn]* ) echo && exit 1;;
    #         esac
    #     done
    # fi

    echo "Unlinking old binaries..."
    brew unlink php$currentversion 2> /dev/null > /dev/null

    echo "Linking new binaries..."
    brew link php$newversion

    echo "Linking new modphp addon..."
    sudo ln -sf `brew list php$newversion | grep libphp` /usr/local/lib/libphp${majorNew}.so
    echo /usr/local/lib/libphp${majorNew}.so
    echo "Fixing LoadModule..."
    apacheConf=`httpd -V | grep -i server_config_file | cut -d '"' -f 2`
    sudo sed -i -e "/LoadModule php${majorOld}_module/s/^#*/#/" $apacheConf

    if grep "LoadModule php${majorNew}_module .*php${newversion}" $apacheConf > /dev/null
    then
        sudo sed -i -e "/LoadModule php${majorNew}_module .*php${newversion}/s/^#//" $apacheConf
    else
        sudo sed -i -e "/LoadModule php${majorNew}_module/s/^#//" $apacheConf
    fi

    echo "Updating version file..."

    pgrep -f /usr/sbin/httpd 2> /dev/null > /dev/null
    if [ $? -eq 0 ]; then
        echo "Restarting system Apache..."
        sudo pkill -9 -f /usr/sbin/httpd
        sudo /usr/sbin/apachectl -k restart > /dev/null 2>&1
    fi

    pgrep -f /usr/local/"Cellar|opt"/*/httpd 2> /dev/null > /dev/null
    if [ $? -eq 0 ]; then
        echo "Restarting homebrew Apache..."
        sudo pkill -9 -f /usr/local/"Cellar|opt"/*/httpd
        sudo /usr/local/bin/apachectl -k restart > /dev/null 2>&1
    fi

    # pgrep -x httpd 2> /dev/null > /dev/null
    # if [ $? -eq 0 ]; then
    #     echo "Restarting non-root homebrew Apache..."
    #     httpd -k restart > /dev/null 2>&1
    # fi

    echo "Done."

    # Show PHP CLI version for verification.
    echo && php -v
else
    echo "PHP version $majorNew.$minorNew was not found."
    echo "Try \`brew install php${newversion}\` first."
    exit 1
fi

Hint for macOS High Sierra users: If you run into /usr/local/sbin is not writeable errors, check that your /usr/local/sbin actually exists. If not, just creating it and chowning it to your user solves the problem.

    # Remove from PATH - ALL
    sed -i '' "/php@5.6/d" "$HOME/.zshrc"
    sed -i '' "/php@7.2/d" "$HOME/.zshrc"
    # Add new to PATH
    echo 'export PATH="$(brew --prefix '"$php_version"')/bin:$PATH"' >> "$HOME/.zshrc"

Thank you for this script! Unfortunately it isn't changing the PATH for me, and so only Apache PHP is changed and not CLI PHP. I use zsh and Homebrew PHP. Based on the comments above this is supposed to work, but for me it just doesn't.

I came up with this Bash function to call instead of sphp. It calls sphp and then finds the PATH within .zshrc and replaces it:

function switch_php() {
	CURR_PHP_VERSION=$(php -v | tail -r | tail -n 1 | cut -d " " -f 2 | cut -c 1-3)
	NEW_PHP_VERSION=$1

	if [ "$CURR_PHP_VERSION" = "$NEW_PHP_VERSION" ]; 
	then
		echo "Already on $NEW_PHP_VERSION ya idiot."
	else
		echo "Switching from $CURR_PHP_VERSION to $NEW_PHP_VERSION."

		sphp $NEW_PHP_VERSION

		sed -i '' "s/php@$CURR_PHP_VERSION/php@$NEW_PHP_VERSION/g" "$HOME/.zshrc"
		
		source ~/.zshrc

		echo "New CLI PHP:"
		php -v

	fi
}

Call it like so: switch_php 7.2.